METHOD FOR ACCOMPLISHING A CONNECTION

Abstract: The object of the invention is a method to make a call from a mobile station using predetermined abbreviated dialling, in which method the call is connected to an exchange, the number is transformed in the exchange on the bases of a short number table to be suitable for the telecommunication network, the call is directed to the owner of the short number including the A-subscriber identity.

Description: METHOD FOR ACCOMPLISHING A CONNECTION The object of the invention is a method for accomplishing a connection profitably from a mobile communication network A- subscriber connection. It has been possible to form a group of subscribers for example inside a company using PABX (private automatic branc exchange) extension numbers, which has made possible to make internal calls inside a group using PABX extension numbers. When a subscriber in the PABX group has made a call using an extension in the group, the extension number and the caller number are transferred in the call initiating message throug the base station 'to the mobile telephone exchange, where fro a subscriber register connected to the exchange using the information received in the message mentioned before it is checked if the subscriber has the right to use the extension number, after which the number is transformed to a PSTN (public switched telephone network) subscriber number using number transformation table. About this call the exchange gives a separate announcement to billing information, so the call can be billed in a special way. The problem of implementations like this is, that they are restricted to a specific PABX group or to a specific base station area. Using the method described in the invention a crucial improvement is achieved concerning the problems mentioned above. To achieve this to the method in the invention is characteristic that, which is presented in part 1 of the claims. Mobile station subscribers call repeatedly to a few same numbers, which may be a certain client, home, an institutio or similar. To make these calls even more interestingly, th operator can give to the mobile phone subscriber abbreviate numbers, using which often to the same subscriber made repeated calls could be billed differently, for example mor profitably than calls, which are made using normal subscriber numbers. In the method of the invention the mobile phone subscriber's calls can be grouped in billing using starting numbers. The object of the invention is a method for accomplishing a connection from a mobile communication network A-subscriber connection to a mobile communication network or other telecommunication network B-subscriber connection for making call with a mobile station, which mobile communication syste includes mobile stations and mobile communication network, which has at least one base station with limited coverage area, to which the mobile stations have a connection to, and at least one mobile phone exchange to switch the connections in the mobile communication network and from it to other communication networks and vice versa. Connection from a mobile station is made to mobile phone exchange by dialling with the mobile station of the A-subscription a predetermine number, which includes a prefix number common to all A- subscribers and a A-subscriber dependent selected short number, which is beforehand stored to a A-subscriber depende short number table in the mobile phone exchange; that in the mobile phone exchange the dialling of the A-subscriber is analysed, when using A-subscriber recognition, like A-subscriber identity, the A-subscriber 1 s right to short number service is recognized; that the short number is transformed using A-subscriber dependent short number table a normal mobile network or other telecommunication network number; and that the connection from the mobile phone exchan to B-subscriber is made using the number which corresponds t above mentioned short number, and this number is a public telecommunication network number. Subscribers can be for example either NMT (Nordic Mobile Telephone) or GSM (Global System for Mobile Communications) subscribers. Short number tables are formed from the short numbers which are used. Short numbers can be for example numbers starting with 701 ... 709, where 70 is a prefix comm for all subscribers attached to the service and 1 ... 9 sho the subscriber's possible short numbers. In the method mentioned above in the mobile phone exchange a billing record is made, in which for the B-number is registered the short number dialled by the A-subscriber. Connection from the mobile phone exchange to the B-subscribe is marked a transferred call, which prevents further call transfer. In IN(intelligent network) architecture a mobile services switching centre MSC includes or is connected to a intellige network exchange INC, which includes intercommunicating an upper level control part SCP and a lower level switching par SSP, through which connections are routed to telecommunicati network subscriber connections and the control part SCP's service applications are reached, when in the mobile phone exchange MSC billing records are formed using as a B-number identifier the short number and -the A-subscriber's dialling analysed and changed with the mentioned prefix and short number to a modified dialling, which included a service key, and this modified dialling is signalled together with the A-subscriber's identification information to the intelligent network exchange INC, where on basis of A-subscriber's identification information the A-subscriber's right to the service is checked, when either the connection is released a the A-subscriber is given a busy tone, if the A-subscriber does not have a right to the service, the short number tabl is not found, the value of the short number is greater than the greatest number beforehand stored to the short number table, or using the A-subscriber specific short number tabl the short number is changed to the mentioned normal mobile communication network or other telecommunication network number and the subscriber's dialling is routed to the B-subscriber connection. In intelligent network exchange INC after or during the identification of the A-subscriber and verification of the right to the service a redundant billing record is made, and in this record the B-number is the short number dialling of the A-subscriber. In intelligent network exchange INC after or during the identification of the A-subscriber and verification of the right to the service a redundant billing record is made, and in this record the B-number is the normal mobile communicatio network or other telecommunication network number which corresponds the short number dialling of the A-subscriber. For the communication between the mobile services switching centre MSC and the IN-exchange public telecommunication network PSTN, a closed dedicated network, a permanent connection, a direct channel and so on can be used. The switching part SSP of the IN-exchange INC can be integrated to be a part of the mobile phone exchange and for the communication between the switching part SSP of the IN-exchange INC public telecommunication network PSTN, a closed dedicated network, a permanent connection, a direct channel and so on can be used. The invention has above been described referring to one of i profitable implementation examples. However by this it is no wanted to restrict this invention to apply only to this example, but all variations in the spirit of inventive idea presented by the following claims are possible.

Claims: CLAIMS 1. A method for accomplishing a connection from mobile communication network A-subscriber connection to mobile communication network or other telecommunication network B- subscriber connection to phone with a mobile station, which mobile communication system includes mobile stations and mobile communication network, which has at least one base station with limited coverage area, to which the mobile stations have a connection to, and at least one mobile phone exchange to switch the connections in the mobile communicati network and from it to other communication networks and vice versa, characterized in that the connection from a mobile station is made to mobile phone exchange by dialling with th mobile station of the A-subscription a predetermined number, which includes a prefix number common to all A-subscribers a a A-subscriber dependent selected short number, which is beforehand stored to a A-subscriber dependent short number table in the mobile phone exchange; that in the mobile phone exchange the dialling of the A-subscriber is analysed, when using A-subscriber recognition, like A-subscriber identity, the A-subscriber's right to short number service is recognized; that the short number is transformed using A-subscriber dependent short number table to a normal mobile network or other telecommunication network number; and that the connection from the mobile phone exchange to B-subscribe is made using the number which corresponds the above mention short number, and this number is a public telecommunication network number. 2. A method according to claim 1, characterized in that in t mobile phone exchange a billing record is made, in which fo the B-number is registered the short number dialled by the A-subscriber. 3. A method according to claim 1 and/or claim 2, characterized in that the connection from the mobile phone centre to the B-subscriber is marked a transferred call, whic prevents further call transfer. 4. A method according to any claim 1 - 3, characterized in that in the method IN(intelligent network) architecture is used such, that mobile phone centres (MSC) include or are connected to an intelligent network centre (INC) , which includes intercommunicating an upper level control part (SCP) and a lower level switching part (SSP) , via which connections are routed to telecommunication network subscriber connection and service applications of the control part (SCP) are reached, wherein at the mobile phone centres (MSC) billing records are formed using as a B-number identifier the short number and the A-subscriber's dialling is analysed and change by the said prefix and short number to a modified dialling comprising a service key, which is signalled together with th A-subscriber' s identification information to the intelligent network centre (INC), where on basis of the A-subscriber' s identification information is checked the A-subscriber' s righ to the service, whereby either the connection is released and the A-subscriber is given a busy tone, if the A-subscriber does not have a right to the service, the short number table is not found, the value of the short number is greater than the greatest number beforehand stored to the short number table, or by using the A-subscriber specific short number table the short number is changed to the said normal number set of the mobile communication network or other telecommunication network and the subscriber's dialling is routed to the B-subscriber connection. 5. A method according to claim 4, characterized in that in th intelligent network centre (INC) after or during the identification of the A-subscriber and verification of the right to a service a redundant billing record is made, wherei as the B-number is a short number dialling of the A-subscriber. 6. A method according to claim 4, characterized in that in t intelligent network centre (INC) after or during the identification of the A-subscriber and verification of the right to a service a redundant billing record is made, wherei as the B-number is a normal number set of a mobile communication network or other telecommunication network number corresponding to the short number dialling of the A-subscriber. 7. A method according to any claim 1 - 6, characterized in that for the communication between the mobile phone centre (MSC) and the IN-centre can be used a public telecommunicatio network (PSTN) , a. closed dedicated network, a permanent connection, a direct channel or a like. 8. A method according to any claim 1 - 6, characterized in that the switching part (SSP) of the IN-exchange (INC) is integrated to be a part of the mobile phone centre and for th communication between the switching part (SSP) of the IN-exchange (INC) is used a public telecommunication network (PSTN) , a closed dedicated network, a permanent connection, a direct channel or a like.

Inventors: LEPPAENEN OSMO, LEPPAENEN, OSMO
Applicants: FINLAND TELECOM OY, LEPPAENEN OSMO, LEPPAENEN, OSMO, TELECOM FINLAND OY
Application year: 1994
Main classification: H04M3
IPC codes: H04M3, H04M15, H04W4, H04W76